Good
I like that you just pay per fax and its charged thru iTunes so no need to give your credit card info or subscription. Was unable to load docs/pdfs from iPad though, followed the directions but it wouldnt work. Would like to be able to load pdfs from iBooks & google docs. Good for the random times that you need to send a fax.
Bestofbo about
eFax App–Send Fax from iPhone, v1.1.3